Finding the Third Proportional to 859,034.50 and 1,262,256.50

Step by Step Solution

1. Step 1: Write the proportion equation
   859,034.50 : 1,262,256.50 = 1,262,256.50 : x
2. Step 2: Convert to fraction form
   859,034.50/1,262,256.50 = 1,262,256.50/x
3. Step 3: Cross multiply
   859,034.50x = 1,262,256.50 × 1,262,256.50
4. Step 4: Simplify right side
   859,034.50x = 1,593,291,471,792.25
5. Step 5: Solve for x
   x = 1,593,291,471,792.25/859,034.50
6. Step 6: Final answer
   x = 1,854,746.78